“…For the third entry in Theorem 5, we do not seem to obtain a reasonably concise integral involving K (due to the apparent lack of a parametrization for the degree 7 modular equation). Using the binary theta function for η 3 (τ )η 3 (7τ ) [4], we obtain the sum (m,n) =(0,0)…”
Section: Weight 3 Cases and Lattice Sumsmentioning
We compute the critical L-values of some weight 3, 4, or 5 modular forms, by transforming them into integrals of the complete elliptic integral K . In doing so, we prove closed-form formulas for some moments of K 3 . Many of our L-values can be expressed in terms of Gamma functions, and we also obtain new lattice sum evaluations.
“…For the third entry in Theorem 5, we do not seem to obtain a reasonably concise integral involving K (due to the apparent lack of a parametrization for the degree 7 modular equation). Using the binary theta function for η 3 (τ )η 3 (7τ ) [4], we obtain the sum (m,n) =(0,0)…”
Section: Weight 3 Cases and Lattice Sumsmentioning
We compute the critical L-values of some weight 3, 4, or 5 modular forms, by transforming them into integrals of the complete elliptic integral K . In doing so, we prove closed-form formulas for some moments of K 3 . Many of our L-values can be expressed in terms of Gamma functions, and we also obtain new lattice sum evaluations.
This work characterizes the vanishing of the Fourier coefficients of all CM (Complex Multiplication) eta quotients. As consequences, we recover Serre’s characterization about that of
$\eta(12z)^{2}$
and recent results of Chang on the pth coefficients of
$\eta(4z)^{6}$
and
$\eta(6z)^{4}$
. Moreover, we generalize the results on the cases of weight 1 to the setting of binary quadratic forms.
“…Principal Genus (1, 0, 162), (9,6,19), (9, −6, 19) +1 +1 Second Genus (2, 0, 81), (11,10,17), (11, −10, 17) −1 +1 . In the above table, p is taken to be coprime to −648 and represented by the given genus.…”
Section: Casementioning
confidence: 99%
“…(2) p is represented by the form (9,6,19) if and only if W −648 (x) factors into two irreducible cubic polynomials modulo p,…”
Section: Casementioning
confidence: 99%
“…It is a continuing area of research to determine the Fourier coefficients of certain eta-quotients. (See [1], [2], [6], [7], [13], and [22]. )…”
We state and prove an identity which represents the most general eta-products of weight 1 by binary quadratic forms. We discuss the utility of binary quadratic forms in finding a multiplicative completion for certain eta-quotients. We then derive explicit formulas for the Fourier coefficients of certain eta-quotients of weight 1 and level 47, 71, 135, 648, 1024, and 1872.
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